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Math Help - The probability of these statements?

  1. #1
    Junior Member
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    The probability of these statements?

    The probability of P = 1/2
    The probability of Q = 1/4

    Find the probabilities of these statements using truth tables and these rules
    Rule 1: If a statement is a tautology (always true), then its probability is 1.
    Rule 2: If a statement is a self-contradiction, then its probability is equal to 0.
    Rule 3: If two statements are logically equivalent, then they have the same probability.

    1. ~(Q&~Q) (Not(Q and not Q)
    2.PV(Q&~Q) (P or(Q and not Q)
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  2. #2
    MHF Contributor
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    Re: The probability of these statements?

    What have you tried? Do see that Q & ~Q is a contradiction?
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